package reflect;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Scanner;

/**
 * 使用反射机制调用方法
 */
public class ReflectDemo4 {
    public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
        Person p = new Person();
        p.sayHello();

        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入类名:");
        String className = scanner.nextLine();
        System.out.println("请输入方法名:");
        String methodName = scanner.nextLine();

        //实例化
        //Class cls = Class.forName("reflect.Person");
        Class cls = Class.forName(className);
        Object obj = cls.newInstance();//Person p = new Person();
        //获取要调用的方法
        //Method method = cls.getMethod("sayHello");
        Method method = cls.getMethod(methodName);
        method.invoke(obj);//p.sayHello();   invoke()执行该方法


    }
}
